Reince Priebus, President-elect Trump’s new chief of staff, said that Trump is “looking into” cutting millions in funding to so-called "sanctuary" cities on day one of his presidency.

Mayors in sanctuary cities are fighting back saying that they will resist Trump’s efforts.

The Trump administration will most certainly use another tool that would impact every employer in the country: E-Verify.

President-elect Donald Trump has pledged to defund sanctuary cities if they fail to cooperate with the deportation or incarceration of up to 3 million immigrants who are criminals or have criminal records.